Q: What is the sum of all factors of the number 78,502,005 excluding 78,502,005?

A: 67,317,435

Why is 67,317,435 the sum of all factors of 78,502,005, excluding 78,502,005?

The factors of the number 78,502,005 are: 1, 3, 5, 9, 15, 17, 45, 51, 85, 89, 153, 255, 267, 445, 765, 801, 1153, 1335, 1513, 3459, 4005, 4539, 5765, 7565, 10377, 13617, 17295, 19601, 22695, 51885, 58803, 68085, 98005, 102617, 176409, 294015, 307851, 513085, 882045, 923553, 1539255, 1744489, 4617765, 5233467, 8722445, 15700401, 26167335, 78502005.

If you add them up, you will get the total of 78,502,072. Now subtract 78,502,005 to get 67,317,435